[INFO] cloning repository https://github.com/chi-bits/uwunix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chi-bits/uwunix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchi-bits%2Fuwunix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchi-bits%2Fuwunix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 979cfd9c9b56ea1d1e130fb87da8e66d03f1ef9e
[INFO] checking chi-bits/uwunix/979cfd9c9b56ea1d1e130fb87da8e66d03f1ef9e against c9ff496891c278ad660bc0ab85c1f0b72059464a for pr-160491
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchi-bits%2Fuwunix" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chi-bits/uwunix
[INFO] finished tweaking git repo https://github.com/chi-bits/uwunix
[INFO] tweaked toml for git repo https://github.com/chi-bits/uwunix written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chi-bits/uwunix on toolchain c9ff496891c278ad660bc0ab85c1f0b72059464a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chi-bits/uwunix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_edit v0.20.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.67
[INFO] [stderr]   Downloaded toml v0.8.1
[INFO] [stderr]   Downloaded syn v2.0.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec
[INFO] running `Command { std: "docker" "start" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec" "/opt/rustwide/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec" "/opt/rustwide/cargo-home/bin/cargo" "+c9ff496891c278ad660bc0ab85c1f0b72059464a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking hashbrown v0.14.1
[INFO] [stderr]     Checking winnow v0.5.15
[INFO] [stderr]     Checking indexmap v2.0.2
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_edit v0.20.1
[INFO] [stderr]     Checking toml v0.8.1
[INFO] [stderr]     Checking uwunix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/disk.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut buf: Vec<u8> = vec![0xff; 0xffff];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/disk.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Disk {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn read(&self, addr: u16) -> u8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn write(&mut self, addr: u16, val: u8) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pcbuf`, `instrbuf`, `ram`, and `port` are never read
[INFO] [stdout]   --> src/cpu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Cpu {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pcbuf: u64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     instrbuf: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 12 |     ram: [u8; 0xffff],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     port: iocat::Port,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clock` is never used
[INFO] [stdout]   --> src/cpu.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Cpu {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn clock(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rw`, `devaddr`, and `byte` are never read
[INFO] [stdout]  --> src/./iocat.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Port {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub rw: bool, // write = true, read = false 
[INFO] [stdout]   |         ^^
[INFO] [stdout] 3 |     pub devaddr: u16,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub byte: u8,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read` is never used
[INFO] [stdout]  --> src/./iocat.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Port {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 8 |     pub fn read(&mut self, addr: u16, byt: u8) {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/disk.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     f.expect("yay").read_to_end(buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let _ = f.expect("yay").read_to_end(buffer);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/disk.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut buf: Vec<u8> = vec![0xff; 0xffff];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `read` and `write` are never used
[INFO] [stdout]   --> src/disk.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Disk {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn read(&self, addr: u16) -> u8 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     pub fn write(&mut self, addr: u16, val: u8) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `pcbuf`, `instrbuf`, `ram`, and `port` are never read
[INFO] [stdout]   --> src/cpu.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub struct Cpu {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pcbuf: u64,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     instrbuf: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 12 |     ram: [u8; 0xffff],
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     port: iocat::Port,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clock` is never used
[INFO] [stdout]   --> src/cpu.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl Cpu {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn clock(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rw`, `devaddr`, and `byte` are never read
[INFO] [stdout]  --> src/./iocat.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Port {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 2 |     pub rw: bool, // write = true, read = false 
[INFO] [stdout]   |         ^^
[INFO] [stdout] 3 |     pub devaddr: u16,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 4 |     pub byte: u8,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `read` is never used
[INFO] [stdout]  --> src/./iocat.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Port {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 8 |     pub fn read(&mut self, addr: u16, byt: u8) {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/disk.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     f.expect("yay").read_to_end(buffer);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let _ = f.expect("yay").read_to_end(buffer);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.76s
[INFO] running `Command { std: "docker" "inspect" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec", kill_on_drop: false }`
[INFO] [stdout] 2035c93724dc2980f2f75a6f021faa6aa37237deafe414ee6458c4accdf10bec
